SHUNT MOD E BIKE CONTROLLER FOR MORE AMPS ez bikes and scooters DIY ELECTRONICS
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- čas přidán 24. 07. 2024
- An E bike controller can be modified to pass more amps to the motor than originally designed. The shunt mod is done to a e-bike controller that is not programmable in software or firmware that controls both output voltage and amperage. www.rockntv1.com/2020/09/shun... This video discusses how to do a shunt mod on an ez bike and scooter controller. Why you would want to do this modification to a bldc motor control. And other upgrades that can be done by the diy e bike and electronics enthusiast. diy ezbikesandscooters. This ebike controller mod WILL use more battery capacity.
- Jak na to + styl
Don't use solder to "beef up the traces."
Yes, you can carry a little more current, but primarily this is because as you mentioned, you are correcting bad soldering.
Too many people are slopping solder onto busses onto traces to increase current.
With solder, less is more.
It is primarily an adhesive and has poor conductivity.
To actually increase current capacity on a trace, you add something conductive - like copper wire.
czcams.com/video/qMwopZ1BoPY/video.html i was limiting the mod to 10% increase for obviouse reasons explained solder is an excelent conductor opossed to air or to little solder which than over heats.
Thank you for opening up my eyes
here is the actual solder work on the shunt mod czcams.com/video/qMwopZ1BoPY/video.html tanx for watching ;-)
hello I did exactly what you said and found that the rail for the MOSFETs were literally only just soldered and not completely either. So I did a bit of a touch up and buttered up the shunts with some 60-40 and man the difference is hugely noticed way more power out the gate. 🎉🎉
be carefull of you throttle now, as extended acts of fun WILL CUASE OVERHEATING ,,,, carry on ;-}
Crazy👍
why?
Thanks. Maybe we can just make our own. On a brushed motor, can you run a heavy gauge wire from battery directly to the motor on a switch with a heavy duty relay so you can get a huge boost when needed? Bypassing controller altogether... Of course you drain your battery quicker. And use it when already cruising. That way least resistance bypassing controller. Have you experimented with a setup like this and whats the result?
you CANNOT bypass the controler as it provides the phase voltage to brushless motors.
Yo if I do this to my 48v controller can i still use my 48v batt
yes, but dont just solder on a blob, reflow the through holes, top and bottom and just coat one of the shunt wires,,, then try it you realy dont want more than 10% increase as the rest of the system becomes the weak link.
So solder the mosfet legs together for more efficiency?
NOOOOOOOO, > czcams.com/video/qMwopZ1BoPY/video.html > you all need to get off the fast forward button !!!!
Ciao,per aggiungere più Potenza cosa bisogna fare?
WATCH THE VIDEO HERE >> czcams.com/video/qMwopZ1BoPY/video.html
You said in video a 48 volt battery fully charged is 51-52 volts.
Yes with a BMS board restricting the voltage.
48 volt battery 14 series is 58.6V fully charged.
Next one down from that is 13 series fully charged is 54.5 volts
That also depends on the charger, thanks for the info
"48 volt battery 14 series is 58.6V fully charged" Thats 10volts over charge which will likley hit the controller high volt limit for protection. not good
Hello sir! I’m modifying my ebike and I bought a new controller and battery but it turns out that they won’t fit in the battery case together because they’re bigger than the stock ones.
My question is would it be wise to just take the circuit board out of the new controller and wrap it up with like foam or something instead of using the box so that it would fit? Or will there be future complications to this?
Please lmk what u think!
Thats a tough question,,, but where you said you are modifying your ebike I imagin your not scared of doing the work your self. So i ask, is your bike a kit that you assembled? or a prebuild brand of electric bicycle?
@@ROCKNTV1 no I’m not scared of doing it myself but I do want to avoid any future complications which is why I ask.
And no my ebike is a Jetson bolt it’s already made. But I looked up like 100’s of CZcams videos and I educated myself and all I’m going to do is replace everything basically but keep the main frame of the bike.
I’m upgrading from a
• 36v 6ah battery to a 48v 14ah battery
• 15a controller to a 48v 28a controller
• 250watt hub motor to a 500watt hub motor
• and changing the throttle to a thumb throttle with key ignition.
And I’m also customizing it like spray painting it and adding things like new tires and a new seat etc.
The problem is the new battery and controller won’t fit the battery case if put together. Because the new controller box (48v 28a) is too big.
So I wanted to know if by just having the circuit board of the controller wrapped in foam or something would be a good idea so that it can fit the battery case along with the new battery.
I was wondering if there would be future complications by not having the controllers circuit board in the box that it comes with.
K, so, once again i am Imagining,lol, you have your wireing (plugs /connectors) figgured out. 28 amps sounds on the high side of a 500watt motor - phase wire sizing. Thats up to you, The extruded aluminum case most ebike controllers come in is for heat dissapation AND they are not very waterproof, you deff need to consider these 2 facts. In a perfectly dry world, the controller would be in a high airflow placement. 48 volts and 28amps is deff going to make heat on slow going hills and standing full throttle leaves.
DUDE, I looked up a Jetson bolt, that AINT no bike,,,, itsa scooter,,, lol